Vehicle lamp



' o. ADDOR VEHICLE LAMP Filed July 50. 1928 4' Sheets-Sheet 1 O. ADDOR VEHICLE. LAMP Sept. Z, 1930.

Filed July 30, 1928 4 Sheets-Sheet 2 Sept. 2, 1930. o. ADDOR 1, ,9

' VEHICLE. IAAMP Filed July 30, 1928 4 Sheets-Sheet 3 Fig.11.

i' l l l Sept. 2, 1930.

b. ADDOR VEHICLE LAMP Filed July so. 1928 4 Sheets-Sheet 4 V IIIIIIIII/IIII VII IIIII/ A electromagnets. Y

a structional example according to "the- 'invenr V 1 figure- .5 isa'horizontal section of the same a Figure 6 shows theconnection ofa*co1nmu-.:- f tator and contact-device for controlling the Patented Sept; 251930 otivjma annb lifoiithnsiiimn, swirznntiiim a weenie LAMP swivelled sideways.

InlampsQfor motor vehicles it has be n; found agreat disadvantage for-{the b a sf.

the lamp not to make a simultaneous change of directioniwith the steering 'of the vehicle at bends in the roads has already been pro posed to arrangeeither the whole lamp orits reflector only on a rotary frame and'toconk 7 meet it positively to the steering rod'orto the steering Wheels so that they may participate inthe turning movement of the same in'fthe} steering direction.

the armature poles is a multiple not divisible Withoutremainder by the number Byth'is apparatus an ext-raordinarily p sn'ia'll' number or" stationary electromagnets 7*,

371, 7'3, 73 :Four of the latter are provided;

they are set' atanglesiof 903 to' each I; .othe'r .round the wheel Each electromagnet consists of: a; U -shapzicl magnet co'r'e' 8 I between whose pole limbs-the"armaturepoles fi can' passf The nuinberof the armature poles v I 6 is aamultipleapl'us oneeof the numbeiof r the electromagnets 7?,"7 7, 7 In this case curate adj ust'menjt" of the lamp reflector as Well'as a stabili'zation'of the same in its'di'fjferent positions isobtained. MOreOVer this] stabilization has the important advantage that vibrations, etc., have no "effect on} the adjustment oft-he reflectori The accompanying drayvingszshoyv v tion,

F igurel is a side :FigureQisa frontviewand v I "F1gurej3' a plan'view of'thesame.

mean sfand:

scale throtwh-theelectroma netico etin Figures-Sandfi show in plan View and section alsegment-ring of the same Wln'chcoratus for lamps withrefl'ectors turnable by the steering mechanism, of the vehicle, in;

which theadjustment jof the reflector into the respectivedirection of motion iseifected by an armature situatedon-fthe rotary axis} ofthe reflector andhaving a' 'relatively' great nulnber'of radial poles and a relatively small number of electromagnets whichta e-cofn ne'cte'd in anexciting circuit'by' thejvehicle" steering mechanism, wherein the number of the r v vievv partly iii-section ofthe reflector of a motor vehicle-headlight with the electromagnetic operating'means,

Figure' 7 is :a long'itudinal section through the commutator and-contact device; is

operates with?a niovablefeontrol contact,

electromagnetic drive from the vehicle steer Figures 10, 11 and-12*shoW-in side, front/T:

and-plan viewtheout'side ofthe lamp casing l so with its glass in; a V i v Figure 13 is a wlrlng diagram tor the commutator 'controlledcircult,

Figures-14, 15, 16 and"17 represent 2;-11}Odl lfication relating to blindingmeans arranged The present invention relates 6 511 1 to allow crossing of another/vehicle without dazzlinglzthe conductor and vvithout aff ect ing' automaticity of the mechanism.

Thereflector 1 igures 1 3) of a inotor below to a Vertical rotary The shaft l which is mounted top and .7 bottomin ball bearings carriesja heel-5 ure's 4 and .5) with numerousradially pro-' jectingarmature poles (Solicits-periphery dis posed insidean annular group of a relatively if i a .u L is that ifone of,theaarinaturepoles,in Figure'* Figure 4 1s a vertical section onalarger 5, the one indicated by 6?,i's substantially in x axis :of the nagnetic field of oneiof thei jelectromagnet s; in Figure the electromagg.

\ net. 7?, the armature pel et? distanced l fromtliat '6 by four pole'i divis ons 5 for instance there:arefseventeen 'arin'ature pol'e'sG arrangedat equal-"distancesone'fro n V the other. (The purpose io-f'this number and i z disposition ofthepoles'b with respect tothe" V number and -disposition of the electromagnetsw I' l i A a i ,i E lrangerof theznextsucceeding ielectroinagnetf f flector," is vmade rotatableabout ajvertical axis by being held in a ring 3 (Figure'-2)j 4 which is" fastened shaft 4.

but not quite in the axis. of the same. If

therefore by exciting the electromagnet 7 "the armature polev 6 takesup its position inthe field axis of the same and thereafter the electromagnet 7" is excited whilst theexcitation of the electromagnet 7f is interrupted,

the armature pole 6 is attracted by the electromagnet 7 b into its field" axis wh ch causes a partial rotationof the armature pole wheel ,"Upon this; partial rotation taking place another armature pole of the Wheel'comes into the effective range of the electromagnet 7 whose GXCltfltlOIl'CilllSGS a further partial rotation ofthe armature pole wheel and so on,

so that in this wayby suc'cessive excitation of the electromagnets the armature pole wheel Yisturn'ed in steps andthe lamp reflector 1 is turned-sidewaysby the successive partial rotations. v 1

.Whilst being in the fieldaxis'position the armature poles Gofthe wheel are held by a kindof brake. Such. a brake is provided on the core limbs ofeach electromagnet and consists of" two pressure, pawls 10 (Figure 4) turnableabout fixed'axes 11 and acted upon by springs 12. On polarizationof the magnet cores the pawls'lO are attracted the fsameand press against the rear end ofthe corresponding armature pole 6 to hold the samefastlin fthe field axis position. When the excitation? ceases thepawls 10 are returned bythelr springs 12. The latter are each carried on an adj ustable'. angle piece'l3'and their tension can be adjusted. by moving the same,

whilst screws 14 in the angle pieces 1?) enable the angular position of thexpawls 10 to be adjusted. l 3 V g An ie'lectricjsource'lo serves to. excite the i .electrom'agnets which, as can he seen from the wiring diagram shown in Figure 13,: is connected to the four electromagnets 7 7", through a commutator and contact mechanism. The commutator consists'of-a stationary ring ofsegments 20 whose contact segments areinsulated from each other and are'connected with the four electromagnets in the wayshown in Figure 13L 1 I 7 Against thesegment ring 20 is disposed a .7

. movable contact fork 21 (Figure 7)., The

flatter is situated ona rotary hollow shaft 22 "which at one end is coupled by a, clutch 23toa cord disc 24 wl1ichis free to turn on a hollow shaft 25. "The cord'dise 24- is connectedby a cord25' (Figure 6) with a cord disor26fastened on the steeringrod of the vehicle-in such awaythat by turning the vehicle steering rod the' cord disc 2% is corre spondingly turne'dlwith'itiand transfers its rotarymotion through the hollow shaft 22 to the contact fork 2 1fwh1ehthus slides along ithe'segment ring 20. Thus,.accor-d1ng tothe viring diagram shown in Figure. 1-3, theelecfor the electromagnet 7 for example flowing from the battery 15, connected at one ter Ininal to the mass, through the contact fork 21, the corresponding segment 20, the electromagnet 7 and a two-branch auxiliary circuit back to the mass. If the contact fork 2l moves out ofthe position shownin Figure 13 in the direction of the arrow corresponding to the direction of the movement of the steering, then after the electromagnet 7 the electromagnets 7*, 7, 7 and thereafter 7 7 again in the same order are excited if the steering is turned further in the same direction. The armature pole Wheel is thus turned from the position shown in Figure 5 in the direc ion of the arrow be cause after the electromagnet 7' the electromagnets 7 and so on are excited. If this rotation ofthe contact fork 21 is reversed from asegment which is connected to the electromagnet 7, then thereafterthe electro 'inagnet 7 is excitedin whose working hold an armaturepole is situated and the armature pole wheel is turned in the reverse direction.

. The armature pole Wheel and thereby the; reflector attached to the same in this wayis turned in a direction corresponding to thedirection in which the steering rod is turned. The steering rod is connected in known manner by a transmission mechanism to the steering wheels of the vehicle. Practical ex perience shows that when turning corners the lateral swivelling of the beam should not exactly follow the displacement of the front wheels butshould proceed in advance of it. toobtain an absolutely safe View of the bend Ofthe road ahead. In the example shown, the arrangement and breadthuo'f the 6011111111 tator segments with respect to the initial point of the control movement (corresponding to motion in a straight line) and the distribution of the armaturepoles is such that if on turning the steering rod the. steering wheels ofthe vehicle are turned about 71 15' from the straight positiomthe movable, contact. of, the commutator has already aassed on to t he next segment and imparted a partial rotation of 2 to the armaturep'olewheel, and that after turning the steering Wheels of the vehicle about 3 d5 the movable contact has passed over to the second an advanced movement of the armature pole wheel and the rotary lamp reflector, which is adapted to give a good visionof the bend of the road ahead. I

Hitherto in the above part'of this specification ithas been assumed that lateral swiv elling of the beam is effected automatically by turning the vehicle road wheels.

should also however be possible to swivel within' a peripherically elongated notch 87 of the-hub of theknob 82, thisnotch allowing'the hand fdisc'85 to be turned withinf'cer- 'tain limits independently oi? the knob 32, the twoextreme positions ofithe handmlisc 85ibeingJ-dete'rinined by a spring latchfSS ffiXed thereon; and engaging with one-or other of two arresting notches 90' provided on'the hub of theknob32.' A With the coupling-en gaged area, the sleeve 80 follows the autom'aticfadjusting movement i "of the shaft 22, the disc 85 havingits spring latch-188 engaged with one of the arresting {notches-9O the'hiib of the knob 32, so'that the whole constitutes an integral construction like that of the-first arrangement, When however p a vehicle arrives f'rointh'e' opposite direction, the ,conductor iturns by hand {the disc'85fso' that-itstooth86 strikes against the other'end ofth'enotch 87 and. that its spring latch 88 engage'slthe other notch 90 in thezhub-of the knob 32. This par-1 tial relativerotation of the -disc85 is neces' sarily followedby 'a'n additional deviationof the lightbeam' beyondits" adjusted position,

' allowing same ,tOf illuminate sfuflicientlyfthe of the-oppositelyarriving vehicle} The stop road without however dazzling the conductor 82- then comingjout of alignment with the *slot 83", preventscornplete rotation of the hollow shaft 22 crossingfconditions. The

- crossing'ofthevehicles having taken place,

the disc 85iis ireturn'ed t its-normalposition. WhatI'claimis'; -:i

i1; A- vehicle la" p,"'c'o1 nprising light. source, 'a rotary reflector," a rotary armature- {wheel with a relatively great number of ra' dial poles, connected to-said reflector, a rela- I i i tlvely' small nuinberf offielectromagnetsiin ture wheel,;the number of the poles 'of the electromagnetic eoo emnon wah said armalatter being a multiple not divisiblewithout remainder b 7 thenumber of electromagnets t V o i v 7 an: electric circuitfor the excitation of the same,a commutator control device to s'ucces-i sively insert saidelectromagnets in said elec tric circuit, connecting means between said,

: commutator control; deviceand-the steering f ;mechanism" of the. vehicle, said connecting" andisaidj'commutah a means comprisingainanually-releasablegcoip for disengagin *saidcqnnectlng means," control: dev ce being provided with manually operatablepart for man pling'is 'releasedf- -j' 1 r "-21, A? vehlcle lamp, "'C OInpl1S1ng"it light source,- a rotary'refiector, a'rotary armature wheel'having radial poles; connected to saidi reflector,{ electromagnets in electromagnetic cooperation with; said farmature wheel, an "el ctrieeircuit fo'iuthe excitation ofthe-saicl e'l'ectromagnets," a commutator: having its fseg merits, felectri or connected to. the electro magnets, a; no r-y control eontact 1 member Ithereon -connecte'd in said circuit, -drivmg al op'eration'tliereof when saidfcOuQ means for said contact'member connected to the steering mechanism of the vehicle, a cone plin'g between said contact member'and said driving 1 means, said contact 1 member being also axially movable for disengaging the cousegments electrically connected to the electrom'agnets, rotary control contact member thereonconnected 1n sald circuit, driving means for rotating said contact member, connected to the: steering mechanism of the vehicle, a 'coupling between said contact member and said driving means, said contact me iiber being provided'with a manually operatablepart and being not only rotatable, but also axially movable in such-a manner asto be capableof being brought into a positi'on' for disengaging the coupling and into a secondposition for leaving thecommutator for "current cutting out purposes.

i. A vehicle lamp, comprising a light source, arotary' reflector, a rotary armature wheel'with a relatively great number ofradial poles,-connected to said reflecto'r, a remtively small number of electromagnets in electromagnetic cooperation with said armature wheel, the number of the polesof' the latter being-a multiple not divisible without remainder by the number of electromagnets, an electric clrcult for the excitatlon of the same, a commutator'having its segments electrically connected to -the electromagnets, a

rotary control contact member thereon con nected in said circuit, driving means ferrotatingsaid contact member, connected: to the steering mechanisni-ottheivehicle', va coupling between said contact member and said driving means, said contact member being provided with a manually 'ope'ratable part and being not o'nly'rotatabl-e, but also axially movable 1 in such a manner as "to be capable of being brought nto a position for d1sengaging the"couplingiandinto asecond position for leaving the commutator for-current cutting out purposes, means being provided for "only-allowing the movable contact memer tobe' broughtinto said second position when ithas" a position on the" commutator corresponding to the straight forward position of therefiector; f I

5. A-vel1iclelamp, comprising a light source, a rotary reflector, rotary armature wheel with a relatively great number of ra- V dial poles,"connected to saidrefiector, a relatively small'aiu nber ot electromagnets in pling for disengagingsaid connecting means, and said commutator control device being provlded with a manually operatable'part electromagnetic cooperation 7 with said armature wheel, the number of thepoles of the latter being a multiple not divisible without remainder by the number of electromagnets,

an electric circuit for'the excitation of the same, a 'commutatorcontrol device to. sue CBSSIVGlY insert said electromagnetsin said electric circuit, connecting means between said commutator control device andthe steering mechanism of the vehicle, said connecting means'comprising a manually releasablecou for manual operation thereof when saidcoupling is released, an electr c s gnal lamp being combined with said commutator control device to visually indicateoperative action wheel having radial poles, connectedito said thereof.

6. A vehicle lamp, comprising a =light source, a rotary reflector,.a rotary armature reflector, electromagnets in electromagnetic cooperation with said armature wheel, an.

electriccircuit for the'excitation' of the said electromagnets, a control device to successively insert sa d ele ctromagnets n said electric circuit, sald control device comprismg a commutator withsegments connected to said electromagnets and a movable control contact member thereon, automatic means to move said contact, member-on the commu e tater. in dependenceof the movements ofthe' I steering mechanismof the vehicle, the com- 7 mutator segments having such a-breadth with electromagnetic cooperation with said armature Wheel, the number of the poles of the v latter being a'multiple'no't divisiblewithoutQ. remainder by the, number of electromagnets,

an electric circuitfor the excitation of the same, a commutator 'cont'roldevice to suecessively insert said electromagnets insaid electric circuit and connecting means between said commutator control devicefand the steer- 1 ing mechanism of the vehicle, sald commuta-J tor *control device;being'con bined with ;a manually operatable auxil ary {control system to allow the operator to act. upon the commutator control device so as to cause some venting dazzling efi'ects.

additional deviation of the reflector for, pre-'.

In Witness whereof I have hereunto signed,

my name this 13th day of July, 1928; 1 1

:QLIVIERL ADDOR. a

respect to the armature pole division that on an angular deviation of the steering mechanism from the straightforward positionthe movable contact member is allowed to pass over a commutator segment causing an ad- Vance of the movement ofthe armaturepole wheel with respect to thevsteerlng angular 1 deviation; r

,7. A vehicle lamp,;comprising a light source a rotaryreflector, a rotary armature wheel with a relatively great number of raii an electric circuit for the excitationof. the

same, a commutator control device to successlvely insert sald electromagnets in said'electIlC circult, connecting means between said commutator control device and the steeringmechanism of the vehicle, and electromag-" netic locking-means to lockthe'armature pole wheel onsfailure; of current in said circuit.

8.A' vehicle lamp, comprising a light source, a rotary refle,ctor,,a rotary armature wheel with a relatively great number of radial poles, connected to said reflector, arelatively small number of electromagnets in 

